QuestionFill in the table using $f(x)=\sqrt{x-4}$. For $x=0$, 4, 13, and 85, find $f(x)$ or state "Not a real number".

Studdy Solution
Calculate the square root of81.
$$f(85) =9$$So, the completed table is\begin{tabular}{|c|c|} \hline$x$ & $f(x)$ \\ \hline0 & Not a real number \\ \hline4 &0 \\ \hline13 &3 \\ \hline85 &9 \\ \hline\end{tabular}